This book explains the following topics: Etale
Morphisms, Etale Fundamental Group, The Local Ring for the Etale Topology,
Sheaves for the Etale Topology, Direct and Inverse Images of Sheaves, Cohomology:
Definition and the Basic Properties, Cohomology of Curves, Cohomological
Dimension, Purity; the Gysin Sequence, The Proper Base Change Theorem,
Cohomology Groups with Compact Support, The Smooth Base Change Theorem, The
Comparison Theorem, The Kunneth Formula, Proof of the Weil Conjectures, The Weil
Conjectures, The Geometry of Lefschetz Pencils and Cohomology of Lefschetz
Pencils.
This note contains below topics, Algebraic structures, Subalgebras direct products homomorphisms, Simplifications of terms, Equations and solutions, Algebraic sets and radicals, Equationally Noetherian algebras, Coordinate algebras, Main problems of universal algebraic geometry, Properties of coordinate algebras, Coordinate algebras of irreducible algebraic sets, When all algebraic sets are irreducible, The intervention of model theory, Geometrical equivalence, Unifying theorems, Appearances of constants, Coordinate algebras with constants.
These notes are for lectures on integral reduction and applied algebraic geometry techniques, given at a school on amplitudes in Beijing in 2016. They show how algebraic geometry is used to reduce multiloop integrals.
This book contains below topics, Introduction and dgalgebras, Infinity categories and model categories, Consequences for dgalgebras, Simplicial structures, Geometric nstacks, Derived geometric nstacks.
This note contains below topics, Examples of homogeneous varieties, Auxilliary varieties, Topology and consequences, Projective dierential invariants, Varieties with degenerate Gauss images, When can a uniruled variety be smooth, Dual varieties, Linear systems of bounded and constant rank, Secant and tangential varieties, Systems of quadrics with tangential defects, Recognizing uniruled varieties.
This note contains below topics, Preliminary Material, Lelong Numbers and Intersection Theory, Holomorphic Vector Bundles, Connections and Curvature, Bochner Technique and Vanishing Theorems, Numerically Eective Line Bundles, Seshadri Constants and the Fujita Conjecture, Algebraic Approach of the Fujita Conjecture, Regularization of Currents and Selfintersection Inequ alities, Use of MongeAmp ere Equations, Numerical Criteria for Very Ample Line Bundles, Holomorphic Morse Inequalities.